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[quote]QUOTE: Originally posted by oltmannd [3. Except for the Metroliner service, 100 mph for a GG1 was pretty rare. In fact, the speed limit for them on the NEC was only 80. Fastest I ever clocked one was in the low 90s thru Northeast Philly on a NY-PHL clocker. [/quote] Keeping the GG1s below 100 was deliberate on the part of the Pennsy. PRR did some testing (they seem to have tested everything) and had a GG1 with 100 mph gearing and another with 90 mph gearing try to keep the same schedule from DC to NY. They found to everyone's surprise that the 90 mph geared locomotive could actually keep a faster schedule. This was due to the numerous station stops and many restricted speed curves on the corridor. The 90 mph geared GG1 could out accelerate its counterpart pulling an identical train.
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